diff --git a/src/interpolations.jl b/src/interpolations.jl
index efae593..cf54fb5 100644
--- a/src/interpolations.jl
+++ b/src/interpolations.jl
@@ -57,6 +57,10 @@ function Ferrite.facedof_interior_indices(ip::InterfaceCellInterpolation{<:Abstr
     return (here..., there...)
 end
 
+# These are currently not used and should be updated, see issue #32
+Ferrite.edgedof_indices(ip::InterfaceCellInterpolation) = ntuple(i -> (), Ferrite.nedges(ip))
+Ferrite.facedof_indices(ip::InterfaceCellInterpolation) = ntuple(i -> (), Ferrite.nfaces(ip))
+
 #########################################################
 # Functions for setting up the cell values
 #########################################################